Why Does the Motorcycle Fuel Tank Make Noise?
2 Answers
Motorcycle fuel tank noise may occur when the fuel level reaches a certain height, causing the float of the fuel level sensor to hit the tank due to bumps during riding. Definition of the fuel tank: It must have sufficient capacity. To maintain fuel cleanliness, the tank should have a sealed cover with an air filter installed. The bottom of the tank should be at least 150mm above the ground, and adequate attention should be paid to the anti-corrosion treatment of the inner surface. Materials of motorcycle fuel tanks: Stainless steel is commonly used for motorcycle fuel tanks, with higher-quality tanks opting for cold-rolled stainless steel. Besides stainless steel, other materials such as specially treated rust-resistant iron, hot-rolled iron, and engineering plastics are also used for motorcycle fuel tanks.
I encountered the issue of a noisy fuel tank when I first started riding motorcycles. It felt like something was sloshing around inside, mainly caused by the gasoline moving and hitting the tank walls during rides, especially noticeable when turning or accelerating. Sometimes, if the fuel cap isn’t tightened properly, it can also create a whooshing noise as air is sucked in or expelled. Additionally, loose mounting bolts for the tank can cause the entire component to shake more, amplifying the sound. During my own checks, I found that minor noises are usually normal, but if the sound is loud or accompanied by increased fuel consumption, it might indicate a detached inner tank shell or a faulty fuel pump. To prevent this, always ensure the cap is tight before riding and regularly visit a repair shop to inspect the mounting hardware. Don’t ignore it, as it can distract you and compromise safe riding.
